Environmental conditions

[rob]

In my current campaign, I picked a rural part of central Pennsylvania, mostly for simplicity on my part (having at least a general knowledge of the area helps). As most of the roads are asphalt with a concrete base, and having driven I-95 through all types of weather, I know asphalt is cheaper than concrete so various Transportation Departments use the asphalt to repair major roads. Using this as a premise, after 150 years, the concrete roads would be in far better shape than asphalt base road beds. I also figure forests would have grown back over old farm fields, school fields, etc. That around heavily nuked sites like major cities, the immediate areas would still be highly radioactive and varying degrees of damage. I have read on some online sites about Chernobyl and Fukushima that nature has come back surprisingly quick in most areas away from the major radioactive locations. In all I figure that nature would have reclaimed most of the human inhabited areas to near pristine conditions, but some things of human would still be around. Thoughts?